Ceramic atomizing core and aerosol generating device

Abstract

The utility model relates to the technical field of atomization devices, in particular to a ceramic atomization core which comprises a heating assembly and a porous ceramic body, the heating assembly comprises two sets of heating parts and two sets of contact pieces, and the two sets of contact pieces are fixedly connected with the two ends of the two sets of heating parts respectively. A square central through hole is formed in the porous ceramic body in the length direction of the porous ceramic body, the two sets of heating parts are oppositely arranged on the inner wall of the square central through hole and extend in the length direction of the porous ceramic body, and the two sets of contact pieces are arranged on the porous ceramic body in the width direction of the porous ceramic body and located on the side of the square central through hole. The ceramic atomizing core is high in atomizing efficiency, and aerosol can flow out in a barrier-free straight-through mode; in addition, the ceramic atomizing core does not leak atomized liquid when in use, and has the advantage of good sealing performance. The utility model further discloses an aerosol generating device.

Description

Technical Field

[0001] The utility model relates to the technical field of atomizing devices, and particularly relates to a ceramic atomizing core and an aerosol generating device. Background Art

[0002] Ceramic atomizing cores are widely used, especially in the field of new tobacco such as aerosol e-cigarettes, occupying a large market share. At present, traditional e-cigarette ceramic atomizing cores are mainly used in small e-cigarettes. Their overall structure can be summarized as planar ceramics (with a square shape, a liquid guiding groove on the upper part, a bottom surface as the atomizing surface, and planar resistance wires distributed on the atomizing surface). The atomizing principle is that the atomizing liquid in the liquid guiding groove is transferred to the atomizing surface through the planar ceramics (porous structure), atomized to form aerosol, and then flows out with the airflow.

[0003] With the development of the market, the atomizing effect of planar ceramics has been difficult to meet consumers' demands for large smoke, high fullness, and high-power output. On the one hand, limited by the small atomizing area of the planar ceramic core, it is difficult to improve the atomizing efficiency. On the other hand, since this type of planar ceramic also serves to seal the atomizing liquid, there are multiple tortuous circuits in the aerosol flow path in traditional ceramic atomizing cores, which hinders the direct outflow of the atomized aerosol and generates more condensate, thus affecting the original state and experience of the aerosol. Therefore, there is an urgent need for a ceramic atomizing core and an aerosol generating device to solve the above problems. Summary of the Utility Model

[0004] In order to solve the technical problems of low atomizing efficiency of the planar ceramic core and multiple tortuous circuits in the aerosol flow path while the planar ceramic seals the atomizing liquid, which hinder the direct outflow of the atomized aerosol and generate more condensate, the utility model provides a ceramic atomizing core and an aerosol generating device with high atomizing efficiency, and the aerosol can flow out in an unobstructed straight-through manner; and the ceramic atomizing core does not leak the atomizing liquid during use and has the advantage of good sealing performance.

[0005] The utility model provides a ceramic atomization core, which comprises a heating component and a porous ceramic body. The heating component includes two groups of heating parts and contact pieces. The two contact pieces are respectively fixedly connected to both ends of the two groups of heating parts; the porous ceramic body is provided with a square central through hole along its length direction. The two groups of heating parts are oppositely arranged on the inner wall of the square central through hole and extend along the length direction of the porous ceramic body. The two contact pieces are arranged on the porous ceramic body along the width direction of the porous ceramic body and are located on the side of the square central through hole. The porous ceramic body first sucks the atomization liquid into the square central through hole. An external power supply supplies power to the contact pieces, and the contact pieces conduct electricity to the two groups of heating parts. The two groups of heating parts generate heat due to the resistance heating effect to heat the atomization liquid in the square central through hole to the boiling point, so as to turn the liquid into atomized steam. The atomization efficiency of the atomization liquid is high. The atomized steam and air are mixed to form an aerosol, and the aerosol finally flows out through the square central through hole in a direct-through manner.

[0006] Further, each group of heating parts includes a mesh-shaped resistance wire and two connecting pieces fixedly connected to both ends of the mesh-shaped resistance wire. Each group of contact pieces is fixedly connected between the two corresponding connecting pieces of the two groups of heating parts; the mesh-shaped resistance wire and the two connecting pieces on each group of heating parts are arranged on the inner wall of the square central through hole along the length direction of the porous ceramic body. An external power supply supplies power to the contact pieces, and the contact pieces conduct electricity to the connecting pieces and the mesh-shaped resistance wire. The two groups of mesh-shaped resistance wires generate heat due to the resistance heating effect to heat the atomization liquid in the square central through hole to the boiling point, so as to turn the liquid into atomized steam.

[0007] Further, two groove parts are oppositely arranged on the inner wall of the square central through hole. Each groove part includes a mesh-shaped groove body arranged on the inner wall of the square central through hole and two embedded grooves located at both ends of the mesh-shaped groove body. The mesh-shaped groove body and the two embedded grooves on each groove part extend along the length direction of the porous ceramic body. The mesh-shaped resistance wire and the two connecting pieces on each group of heating parts are respectively embedded in the mesh-shaped groove body and the two embedded grooves on the groove part. The mesh-shaped resistance wire is embedded in the mesh-shaped groove body, and the connecting piece is embedded in the embedded groove. After the heating part is installed on the inner wall of the square central through hole, the structure is delicate and does not affect the direct-through outflow of the aerosol in the square central through hole.

[0008] Further, the resistance value of each group of mesh-shaped resistance wires is greater than or equal to 0.1 ohm.

[0009] Further, two inner grooves are arranged on the porous ceramic body and are respectively located on the side of the square central through hole. Each inner groove extends along the width direction of the porous ceramic body. Each group of contact pieces is embedded in the inner groove. The contact pieces are embedded in the inner groove. After the contact pieces are installed on the porous ceramic body, the structure is delicate and does not affect the direct-through outflow of the aerosol in the square central through hole.

[0010] Furthermore, the porous ceramic body has a square structure, the wall thickness of the porous ceramic body is greater than or equal to 0.3 mm, the porosity of the porous ceramic body is greater than or equal to 35%, and the water absorption rate of the porous ceramic body is greater than or equal to 20%.

[0011] Furthermore, the width of the square central through-hole is greater than or equal to 0.5 mm, and the length of the square central through-hole is greater than or equal to 3.0 mm.

[0012] Compared with the prior art, the utility model has the following technical effects:

[0013] When the ceramic atomization core with this structure of the utility model is in use, due to the arrangement of two sets of heating parts, the heating area can be increased, the atomized aerosol amount and atomization efficiency can be improved; due to the arrangement of the square central through-hole, which replaces the multi-twisted circuits arranged on the traditional planar ceramic, the aerosol can flow out in an unobstructed straight-through manner, meeting the needs of consumers for the original state of the aerosol, and the use experience of consumers is better. And the ceramic atomization core will not leak atomization liquid during use, and has the advantage of good sealing performance.

[0014] The utility model provides an aerosol generating device, which includes a packaging member and the ceramic atomization core described in any one of the above. The packaging member includes a housing, a sealing part and a base. The housing and the base are detachably connected and the sealing part is fixed between the housing and the base; an air outlet pipe is arranged at the central position inside the housing, and a liquid storage chamber is formed between the outer wall of the air outlet pipe and the inner wall of the housing; a liquid channel and a gas channel are arranged on the sealing part; an air inlet hole and two electrodes are arranged on the base; the ceramic atomization core is arranged inside the sealing part, the porous ceramic body on the ceramic atomization core communicates with one end of the liquid channel, the other end of the liquid channel communicates with the liquid storage chamber, the square central through-hole on the ceramic atomization core communicates with the air inlet hole and one end of the gas channel, the other end of the gas channel communicates with one end of the air outlet pipe, and the other end of the air outlet pipe leads to the outside; one ends of the two electrodes are respectively in contact with two sets of contact pieces on the ceramic atomization core, and the other ends of the two electrodes are used for electrically connecting with an external power supply.

[0015] Further, the sealing part includes a first seal, a fixing base and a second seal which are fixedly connected. Both the housing and the first seal are detachably connected to the base. The ceramic atomization core is arranged inside the second seal and is located between the second seal and the base. The first seal is provided with a first central hole and two first liquid inlet holes on both sides of the first central hole. The fixing base is provided with an air inlet slot, a liquid inlet slot and two liquid inlets communicating with the liquid inlet slot. The second seal is provided with a second central hole and two second liquid inlet holes. A liquid channel is formed among the two first liquid inlet holes, one liquid inlet slot, the two liquid inlets and the two second liquid inlet holes. The end of each second liquid inlet hole communicates with the porous ceramic body on the ceramic atomization core, and the end of each first liquid inlet hole communicates with the liquid storage chamber. A gas channel is formed among the first central hole, the air inlet slot and the second central hole. The end of the second central hole communicates with the square central through hole on the ceramic atomization core, and the end of the first central hole communicates with one end of the air outlet pipe. The atomized liquid in the liquid storage chamber is successively sucked into the porous ceramic body after passing through the first liquid inlet hole, the liquid inlet slot, the liquid inlet and the second liquid inlet hole, and then the atomized liquid enters the square central through hole. The aerosol finally enters the air outlet pipe through the square central through hole, the second central hole, the gas channel, the air inlet slot and the first central hole, and finally flows out in a direct-through manner from the air outlet pipe, and the aerosol is sucked away by a person.

[0016] Further, a plurality of fixing columns are uniformly arranged on the fixing base, and a plurality of fixing holes are uniformly arranged on the first seal and the second seal. The plurality of fixing columns are respectively clamped into the plurality of fixing holes on the first seal and the second seal, and the fixing base is located inside the first seal, and the second seal is located inside the fixing base. A clamping groove is arranged on the inner wall of the housing, a clamping mouth is arranged at a position of the first seal corresponding to the clamping groove, and a clamping block is arranged on the base. The clamping block passes through the clamping mouth and is clamped in the clamping groove. By means of the clamping connection of the clamping block, the clamping mouth and the clamping groove, the housing and the first seal are fixed to the base together. And since the first seal, the fixing base and the second seal are already nested and fixed together, the first seal, the fixing base, the second seal and the ceramic atomization core are all fixed between the housing and the base.

[0017] Compared with the prior art, the utility model has the following technical effects:

[0018] This structural ceramic atomization core used in the aerosol generating device of the present utility model can increase the heating area, improve the amount of atomized aerosol and the atomization efficiency, and enable the aerosol to flow out in an unobstructed direct-through manner. Therefore, this aerosol generating device has high atomization efficiency, and the aerosol can flow out in an unobstructed direct-through manner to meet the consumer's demand for the original state of the aerosol, and the consumer's usage experience is better. Moreover, when the ceramic atomization core is in use, the sealing part will seal it, and the ceramic atomization core will not leak atomization liquid, and the aerosol generating device has the advantage of good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a ceramic atomization core of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the porous ceramic body of the present utility model;

[0021] Figure 3 is the present utility model Figure 2 a schematic enlarged view of the structure of A in;

[0022] Figure 4 is a schematic structural diagram of the heating component of the present utility model;

[0023] Figure 5 is a schematic structural diagram of a ceramic atomization core of the present utility model;

[0024] Figure 6 is a schematic cross-sectional structural diagram of a ceramic atomization core of the present utility model;

[0025] Figure 7 is a schematic structural diagram of the first seal of the present utility model;

[0026] Figure 8 is a schematic top view structural diagram of the fixing seat of the present utility model;

[0027] Figure 9 is a schematic bottom view structural diagram of the fixing seat of the present utility model;

[0028] Figure 10 is a schematic structural diagram of the second seal of the present utility model;

[0029] Figure 11 is a schematic structural diagram when the ceramic atomization core of the present utility model is installed on the second seal;

[0030] Figure 12 is a schematic structural diagram of the housing of the present utility model;

[0031] The reference numerals in the drawings are:

[0032] 1. Ceramic atomization core; 11. Porous ceramic body; 111. Square central through hole; 112. Mesh-shaped groove body; 113. Embedded groove; 114. Inner groove; 12. Heating part; 121. Mesh-shaped resistance wire; 122. Connecting piece; 13. Contact piece;

[0033] 2. Sealing part; 21. First seal; 211. First central hole; 212. First liquid inlet hole; 213. Bayonet; 22. Fixed seat; 221. Air inlet slot; 222. Liquid inlet slot; 223. Liquid inlet; 224. Fixed column; 23. Second seal; 231. Second central hole; 232. Second liquid inlet hole;

[0034] 3. Shell; 31. Air outlet pipe; 32. Liquid storage chamber; 33. Card slot;

[0035] 4. Base; 41. Air inlet hole; 42. Electrode; 43. Clamping block. Specific embodiments

[0036] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] As Figures 1 to 4 shown, in Embodiment 1, a ceramic atomization core includes a heating component and a porous ceramic body 11. The heating component includes two groups of heating parts 12 and contact pieces 13. The two groups of contact pieces 13 are respectively fixedly connected to both ends of the two groups of heating parts 12. The two groups of contact pieces 13 realize the parallel connection of the two groups of heating parts 12. Among them, the two groups of heating parts 12 and the contact pieces 13 are integrally formed by stamping. The contact pieces 13 only conduct electricity and do not generate heat. The porous ceramic body 11 includes a length direction, a width direction and a height direction. The porous ceramic body 11 is provided with a square central through hole 111 along its length direction. Among them, the width of the square central through hole 111 is greater than or equal to 0.5 mm, and the length of the square central through hole 111 is greater than or equal to 3.0 mm. The two groups of heating parts 12 are oppositely arranged on the inner wall of the square central through hole 111 and extend along the length direction of the porous ceramic body 11. The two groups of heating parts 12 extend along the length direction of the porous ceramic body 11, and the area of the arranged heating parts 12 itself increases, thereby further increasing the heating area. The two groups of contact pieces 13 are arranged on the porous ceramic body 11 along the width direction of the porous ceramic body 11 and are located on the side of the square central through hole 111. The structure of the ceramic atomization core 1 in this embodiment is simple and convenient for installation. After installation, the overall structure of the heating component and the porous ceramic body 11 is concise and does not occupy extra space.

[0038] For the porous ceramic body 11, first, the atomized liquid is inhaled into the square central through-hole 111. The external power supply supplies power to the contact piece 13, and the contact piece 13 conducts electricity to the two groups of heating parts 12. Due to the resistance heating effect, the two groups of heating parts 12 generate heat to heat the atomized liquid in the square central through-hole 111 to the boiling point, thereby turning the liquid into atomized steam. The atomization efficiency of the atomized liquid is high, and the atomized steam that is vaporized is mixed with air to form an aerosol, and finally the aerosol flows out through the square central through-hole 111 in a direct-through manner. And this ceramic atomization core 1 will not leak atomized liquid during use, having the advantage of good sealing performance.

[0039] When the ceramic atomization core 1 with this structure in this embodiment is in use, because two groups of heating parts 12 are provided, the heating area can be increased, and the amount of atomized aerosol and the atomization efficiency can be improved; because the square central through-hole 111 is provided, replacing the multi-twisted circuits provided on the traditional planar ceramic, the aerosol can flow out in an unobstructed direct-through manner, meeting the needs of consumers for the original state of the aerosol, and the consumers' usage experience is better. And this ceramic atomization core 1 will not leak atomized liquid during use, having the advantage of good sealing performance.

[0040] As an implementable manner, each group of the heating parts 12 includes a mesh-shaped resistance wire 121 and two connection pieces 122 fixedly connected to both ends of the mesh-shaped resistance wire 121. Each group of the contact pieces 13 is fixedly connected between the two corresponding connection pieces 122 of the two groups of heating parts 12, wherein the resistance value of each group of the mesh-shaped resistance wires 121 is greater than or equal to 0.1 ohm; the mesh-shaped resistance wires 121 and the two connection pieces 122 on each group of the heating parts 12 are arranged on the inner wall of the square central through-hole 111 along the length direction of the porous ceramic body 11. Specifically, the external power supply supplies power to the contact piece 13, and the contact piece 13 conducts electricity to the connection piece 122 and the mesh-shaped resistance wire 121. Due to the resistance heating effect, the two groups of mesh-shaped resistance wires 121 generate heat to heat the atomized liquid in the square central through-hole 111 to the boiling point, thereby turning the liquid into atomized steam.

[0041] As an implementable manner, two groove portions are oppositely arranged on the inner wall of the square central through hole 111. Each groove portion includes a mesh-shaped groove body 112 arranged on the inner wall of the square central through hole 111 and two embedded grooves 113 located at both ends of the mesh-shaped groove body 112. The mesh-shaped groove body 112 and the two embedded grooves 113 on each groove portion all extend along the length direction of the porous ceramic body 11. The mesh-shaped resistance wire 121 and the two connecting pieces 122 on each heating portion 12 are respectively embedded into the mesh-shaped groove body 112 and the two embedded grooves 113 on the groove portion. The mesh-shaped resistance wire 121 is embedded into the mesh-shaped groove body 112, and the connecting piece 122 is embedded into the embedded groove 113. After the heating portion 12 is installed on the inner wall of the square central through hole 111, the structure is delicate and does not affect the direct flow of the aerosol through the square central through hole 111.

[0042] As an implementable manner, the material of the mesh-shaped resistance wire 121 can be iron-chromium-aluminum alloy, nickel-chromium alloy or stainless steel. The resistance value of the mesh-shaped resistance wire 121 is set to be greater than or equal to 0.1 ohm. Specifically, the resistance value of the mesh-shaped resistance wire 121 can be 0.3 ohm, 0.4 ohm or 0.5 ohm and other values, but is not limited to the values listed in this embodiment.

[0043] As an implementable manner, two inner grooves 114 are arranged on the porous ceramic body 11 and the two inner grooves 114 are respectively located on the sides of the square central through hole 111. Each inner groove 114 extends along the width direction of the porous ceramic body 11. Each contact piece 13 is embedded into the inner groove 114. After the contact piece 13 is installed on the porous ceramic body 11, the structure is delicate and does not affect the direct flow of the aerosol through the square central through hole 111.

[0044] As an implementable manner, the porous ceramic body 11 is of a square structure. The wall thickness of the porous ceramic body 11 is greater than or equal to 0.3 mm. The porosity of the porous ceramic body 11 is greater than or equal to 35%. The water absorption rate of the porous ceramic body 11 is greater than or equal to 20%. With the porous ceramic body 11 adopted in this embodiment, the pores and water absorption rate of the porous ceramic body 11 can meet the atomization requirements of the heating portion 12.

[0045] Such as Figures 5 to 12As shown in the second embodiment, an aerosol generating device includes a package and the ceramic atomization core 1 described in any one of the above. The package includes a housing 3, a sealing portion 2, and a base 4. The housing 3 and the base 4 are detachably connected, and the sealing portion 2 is fixed between the housing 3 and the base 4. An air outlet duct 31 is provided at the central position inside the housing 3, and a liquid storage chamber 32 is formed between the outer wall of the air outlet duct 31 and the inner wall of the housing 3. A liquid passage and a gas passage are provided on the sealing portion 2. An air inlet hole 41 and two electrodes 42 are provided on the base 4. The two electrodes 42 are one positive and one negative. The value of the air inlet hole 41 is not limited. In this embodiment, two air inlet holes 41 are provided, and the two electrodes 42 are located outside the two air inlet holes 41. The ceramic atomization core 1 is disposed inside the sealing portion 2. The porous ceramic body 11 on the ceramic atomization core 1 communicates with one end of the liquid passage, and the other end of the liquid passage communicates with the liquid storage chamber 32. The liquid storage chamber 32 stores the atomization liquid. The square central through hole 111 on the ceramic atomization core 1 communicates with the air inlet hole 41 and one end of the gas passage. The other end of the gas passage communicates with one end of the air outlet duct 31, and the other end of the air outlet duct 31 leads to the outside. One end of each of the two electrodes 42 contacts two sets of contact pieces 13 on the ceramic atomization core 1, and the other end of each of the two electrodes 42 is used for electrical connection with an external power supply. Among them, both the housing 3 and the base 4 are made of plastic material.

[0046] In the using process of the aerosol generating device of this embodiment, the atomization liquid in the liquid storage chamber 32 is sucked into the porous ceramic body 11 through the liquid passage, and then the atomization liquid enters the square central through hole 111. The external power supply supplies power to the contact pieces 13, and the contact pieces 13 conduct electricity to the two sets of heating portions 12. The two sets of heating portions 12 generate heat due to the resistance heating effect to heat the atomization liquid in the square central through hole 111 to the boiling point, thereby turning the liquid into atomized steam. External air enters the square central through hole 111 through the air inlet hole 41, and the vaporized atomized steam and air are mixed to form aerosol. The aerosol finally flows out in a direct-through manner through the square central through hole 111, the gas passage, and the air outlet duct 31. And when the ceramic atomization core 1 is in use, the sealing portion 2 seals it, and the ceramic atomization core 1 will not leak the atomization liquid. The aerosol generating device has the advantage of good sealing performance.

[0047] Because the aerosol generating device is started when the microphone sensor starts under negative pressure during human suction (the microphone sensor and other electronic devices are processed to achieve ignition control), the two sets of heating portions 12 are powered on for atomization, and the aerosol will not flow back out through the air inlet hole 41.

[0048] In the aerosol generating device of this embodiment, the structural ceramic atomization core 1 used can increase the heating area, improve the amount of atomized aerosol and the atomization efficiency, and enable the aerosol to flow out in an unobstructed direct-through manner. Therefore, the aerosol generating device of this embodiment can meet the consumer's demand for the original state of the aerosol, and the consumer's usage experience is better. And when the ceramic atomization core 1 is in use, the sealing part 2 will seal it, and the ceramic atomization core 1 will not leak the atomization liquid, and the aerosol generating device has the advantage of good sealing performance.

[0049] As an implementable mode, the sealing part 2 includes a first seal 21, a fixed seat 22 and a second seal 23 that are fixedly connected. Both the housing 3 and the first seal 21 are detachably connected to the base 4, and the first seal 21, the fixed seat 22 and the second seal 23 are all located between the housing 3 and the base 4. The ceramic atomization core 1 is arranged inside the second seal 23 and the ceramic atomization core 1 is located between the second seal 23 and the base 4; wherein, the first seal 21 and the second seal 23 play a sealing role and are both made of soft silicone material; the fixed seat 22 plays a role in supporting and connecting the first seal 21 and the second seal 23 and is made of plastic material; a first central hole 211 and two first liquid inlet holes 212 that are symmetrically arranged on both sides of the first central hole 211 are arranged on the first seal 21; the fixed seat 22 is sequentially provided with an air intake slot 221, a liquid inlet slot 222 and two liquid inlets 223 that are symmetrically arranged and communicated with the liquid inlet slot 222 from the inside to the outside; a second central hole 231 is arranged at the bottom of the second seal 23, and two second liquid inlet holes 232 are oppositely arranged on the side wall of the second seal 23; a liquid channel is formed between the two first liquid inlet holes 212, one liquid inlet slot 222, two liquid inlets 223 and two second liquid inlet holes 232. The end of each second liquid inlet hole 232 communicates with the porous ceramic body 11 on the ceramic atomization core 1, and the end of each first liquid inlet hole 212 communicates with the liquid storage chamber 32; a gas channel is formed between the first central hole 211, the air intake slot 221 and the second central hole 231. The end of the second central hole 231 communicates with the square central through hole 111 on the ceramic atomization core 1, and the end of the first central hole 211 communicates with one end of the air outlet pipe 31.

[0050] Specifically, the atomization liquid in the liquid storage chamber 32 is successively sucked into the porous ceramic body 11 after passing through the first liquid inlet hole 212, the liquid inlet slot 222, the liquid inlet 223 and the second liquid inlet hole 232, and then the atomization liquid enters the square central through hole 111.

[0051] Finally, the aerosol enters the air outlet pipe 31 through the square central through hole 111, the second central hole 231, the air intake slot 221 and the first central hole 211, and finally flows out in a direct-through manner from the air outlet pipe 31, and the aerosol is sucked away by a person.

[0052] As an implementable manner, a plurality of fixing posts 224 are uniformly arranged on the fixing base 22. Some of the fixing posts 224 are arranged on the top of the fixing base 22, and some of the fixing posts 224 are arranged at the bottom of the fixing base 22 (this part is not shown). A plurality of fixing holes are uniformly arranged on the first seal 21 and the second seal 23. The plurality of fixing posts 224 are respectively snapped into the plurality of fixing holes on the first seal 21 and the second seal 23, and the fixing base 22 is located inside the first seal 21, and the second seal 23 is located inside the fixing base 22. Among them, the plurality of fixing posts 224 and the fixing holes are cooperatively snapped to fix the first seal 21, the fixing base 22 and the second seal 23 together, and the first seal 21, the fixing base 22 and the second seal 23 are nested and fixed.

[0053] Furthermore, a fixing groove is also arranged on the base 4. The fixing groove, the fixing holes and the fixing posts 224 are located on the same axis. Some of the fixing posts 224 pass through the fixing holes on the second seal 23 and then are snapped into the fixing groove, so that the nested first seal 21, the fixing base 22 and the second seal 23 are fixed on the base 4, and further the first seal 21, the fixing base 22 and the second seal 23 are stably fixed between the housing 3 and the base 4.

[0054] As an implementable manner, a clamping groove 33 is arranged on the inner wall of the housing 3. A clamping mouth 213 is arranged at a position corresponding to the clamping groove 33 on the first seal 21. A clamping block 43 is arranged on the base 4. The clamping block 43 passes through the clamping mouth 213 and is clamped in the clamping groove 33. In this embodiment, two clamping grooves 33, clamping mouths 213 and clamping blocks 43 are arranged. Through the clamping connection of the clamping block 43, the clamping mouth 213 and the clamping groove 33, the housing 3, the first seal 21 and the base 4 are fixed together. And since the first seal 21, the fixing base 22 and the second seal 23 have been nested and fixed together, the first seal 21, the fixing base 22, the second seal 23 and the ceramic atomization core 1 are all fixed between the housing 3 and the base 4. The housing 3 and the first seal 21 of this embodiment are both detachably connected to the base 4, and the first seal 21, the fixing base 22 and the second seal 23 are detachably connected. The aerosol generating device of this embodiment is convenient for rapid assembly and forming.

[0055] The above embodiments are only the preferred embodiments of the present invention, which are only used to explain the present invention and do not limit the scope of implementation of the present invention. For those skilled in the art of this technology, of course, other implementation manners can be easily made by means of replacement or change according to the technical content disclosed in this specification. Therefore, all changes and improvements made in the principles and process conditions of the present invention should be included within the scope of the patent application of the present invention.

Claims

1. A ceramic atomization core, comprising a heating component and a porous ceramic body (11), characterized in that, The heating component includes two groups of heating parts (12) and contact pieces (13). The two groups of contact pieces (13) are respectively fixedly connected to both ends of the two groups of heating parts (12); the porous ceramic body (11) is provided with a square central through-hole (111) along its length direction. The two groups of heating parts (12) are oppositely arranged on the inner wall of the square central through-hole (111) and extend along the length direction of the porous ceramic body (11). The two groups of contact pieces (13) are arranged on the porous ceramic body (11) along the width direction of the porous ceramic body (11) and are located on the side of the square central through-hole (111).

2. The ceramic atomizing core according to claim 1, characterized in that, Each group of heating parts (12) includes a mesh-shaped resistance wire (121) and two connecting pieces (122) fixedly connected to both ends of the mesh-shaped resistance wire (121). Each group of contact pieces (13) is fixedly connected between two corresponding connecting pieces (122) on the two groups of heating parts (12); the mesh-shaped resistance wire (121) and the two connecting pieces (122) on each group of heating parts (12) are both arranged on the inner wall of the square central through-hole (111) along the length direction of the porous ceramic body (11).

3. The ceramic atomizing core according to claim 2, wherein Two groove parts are oppositely arranged on the inner wall of the square central through-hole (111). Each groove part includes a mesh-shaped groove body (112) arranged on the inner wall of the square central through-hole (111) and two embedded grooves (113) located at both ends of the mesh-shaped groove body (112). The mesh-shaped groove body (112) and the two embedded grooves (113) on each groove part extend along the length direction of the porous ceramic body (11). The mesh-shaped resistance wire (121) and the two connecting pieces (122) on each group of heating parts (12) are respectively embedded into the mesh-shaped groove body (112) and the two embedded grooves (113) on the groove part.

4. The ceramic atomizing core according to claim 2, characterized in that, The resistance value of each group of mesh-shaped resistance wires (121) is greater than or equal to 0.1 ohm.

5. The ceramic atomizing core according to claim 1, wherein Two inner grooves (114) are provided on the porous ceramic body (11) and the two inner grooves (114) are respectively located on the side of the square central through-hole (111). Each inner groove (114) extends along the width direction of the porous ceramic body (11). Each group of contact pieces (13) is embedded into the inner groove (114).

6. The ceramic atomizing core according to claim 1, wherein The porous ceramic body (11) is of a square structure. The wall thickness of the porous ceramic body (11) is greater than or equal to 0.3 mm. The porosity of the porous ceramic body (11) is greater than or equal to 35%. The water absorption rate of the porous ceramic body (11) is greater than or equal to 20%.

7. The ceramic atomizing core according to claim 1, wherein The width of the square central through-hole (111) is greater than or equal to 0.5 mm. The length of the square central through-hole (111) is greater than or equal to 3.0 mm.

8. An aerosol generating device, characterized in that, It includes an encapsulation and the ceramic atomization core (1) as described in any one of claims 1 to 7. The encapsulation includes a housing (3), a sealing part (2) and a base (4). The housing (3) and the base (4) are detachably connected, and the sealing part (2) is fixed between the housing (3) and the base (4). At the central position inside the housing (3), an air outlet duct (31) is provided, and a liquid storage chamber (32) is formed between the outer wall of the air outlet duct (31) and the inner wall of the housing (3). The sealing part (2) is provided with a liquid passage and a gas passage. The base (4) is provided with an air inlet hole (41) and two electrodes (42). The ceramic atomization core (1) is arranged inside the sealing part (2). The porous ceramic body (11) on the ceramic atomization core (1) communicates with one end of the liquid passage, and the other end of the liquid passage communicates with the liquid storage chamber (32). The square central through hole (111) on the ceramic atomization core (1) communicates with the air inlet hole (41) and one end of the gas passage. The other end of the gas passage communicates with one end of the air outlet duct (31), and the other end of the air outlet duct (31) leads to the outside. One end of each of the two electrodes (42) contacts two groups of contact pieces (13) on the ceramic atomization core (1), and the other end of each of the two electrodes (42) is used for electrically connecting to an external power source.

9. The aerosol generating device according to claim 8, wherein The sealing part (2) includes a first seal (21), a fixing seat (22) and a second seal (23) which are fixedly connected. The housing (3) and the first seal (21) are both detachably connected to the base (4). The ceramic atomization core (1) is arranged inside the second seal (23), and the ceramic atomization core (1) is located between the second seal (23) and the base (4). The first seal (21) is provided with a first central hole (211) and two first liquid inlet holes (212). The fixing seat (22) is provided with an air inlet slot (221), a liquid inlet slot (222) and two liquid inlets (223) communicating with the liquid inlet slot (222). The second seal (23) is provided with a second central hole (231) and two second liquid inlet holes (232). A liquid passage is formed among the two first liquid inlet holes (212), one liquid inlet slot (222), the two liquid inlets (223) and the two second liquid inlet holes (232). The end of each second liquid inlet hole (232) communicates with the porous ceramic body (11) on the ceramic atomization core (1), and the end of each first liquid inlet hole (212) communicates with the liquid storage chamber (32). A gas passage is formed among the first central hole (211), the air inlet slot (221) and the second central hole (231). The end of the second central hole (231) communicates with the square central through hole (111) on the ceramic atomization core (1), and the end of the first central hole (211) communicates with one end of the air outlet duct (31).

10. The aerosol generating device according to claim 9, wherein, A plurality of fixing posts (224) are uniformly arranged on the fixing base (22). A plurality of fixing holes are uniformly arranged on the first sealing member (21) and the second sealing member (23). The plurality of fixing posts (224) are respectively inserted into the plurality of fixing holes on the first sealing member (21) and the second sealing member (23), and the fixing base (22) is located inside the first sealing member (21), and the second sealing member (23) is located inside the fixing base (22); A clamping groove (33) is arranged on the inner wall of the housing (3). A clamping opening (213) is arranged at a position corresponding to the clamping groove (33) on the first sealing member (21). A clamping block (43) is arranged on the base (4). The clamping block (43) passes through the clamping opening (213) and is clamped in the clamping groove (33).

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